From Fantasy to Reality, With Help From the Crowd

Want a look at what high-tech gizmos you might be unwrapping at the end of 2013? We scoured crowdfunding websites such as Kickstarter and Indiegogo for innovative projects that raised money in 2012. Now it's up to their designers to deliver. We talked to 10 who expect to ship their products to backers in the year ahead—and might even have them ready for sale more widely in time to put under the tree.